checkdate
Description
Validate a Gregorian date
Syntax
checkdate(int $month, int $day, int $year): bool
Parameters
monthThe month is between 1 and 12 inclusive.
dayThe day is within the allowed number of days for the given month. Leap years are taken into consideration.
yearThe year is between 1 and 32767 inclusive.
Return
Returns true if the date given is valid; otherwise returns false.
Examples
1 · valid
<? $month = 2; $day = 29; $year = 2000; $return = checkdate($month, $day, $year); var_export($return); ?>
true
2 · invalid
<? $month = 2; $day = 29; $year = 2001; $return = checkdate($month, $day, $year); var_export($return); ?>
false
